Siemens C651

Siemens AG (SIE) C651
A Siemens C651 train.
Interior of a Siemens C651 train
Stock typeElectric multiple unit
In service2 May 1995 – 30 September 2024 (29 years, 151 days)
ManufacturerSiemens Mobility, SGP Verkehrstechnik[1]
AssemblyVienna, Austria[1]
Constructed1993 – 1994
Entered service2 May 1995; 29 years ago (1995-05-02)
RefurbishedSingapore Rail Engineering (SRE)[2]
2016 – 2018[a]
Retired30 September 2024; 57 days ago (2024-09-30)
ScrappedSeptember 2020 – December 2024
Number built114 Vehicles (19 Sets)
Number preserved4 Vehicles
Number scrapped110 Vehicles
SuccessorAlstom Movia R151
Formation6 per trainset
DT–M1–M2+M2–M1–DT
Fleet numbers201/202 – 237/238
Capacity1920 passengers (372/336 seats)
OperatorsSMRT Trains (SMRT Corporation)
Depots
Lines served
Specifications
Car body constructionAluminium-alloy double-skinned construction
Train length138.5 m (454 ft 4+34 in)
Car length
  • 23.65 m (77 ft 7 in) (DT)
  • 22.8 m (74 ft 10 in) (M)
Width3.2 m (10 ft 6 in)
Height3.7 m (12 ft 1+58 in)
Doors1,450 mm (57+18 in), 8 per car, 4 per side
Wheel diameter850–775 mm (33.5–30.5 in) (new–worn)[4]
Wheelbase2,500 mm (98 in)[4]
Maximum speed
  • 90 km/h (56 mph) (design)
  • 80 km/h (50 mph) (service)
Weight
  • 35 t (34 long tons; 39 short tons) (unladen)
  • 53.8 t (53.0 long tons; 59.3 short tons) (laden)
Axle load16 t (16 long tons; 18 short tons)[4]
Traction systemSiemens PWM GTOVVVF
Traction motors16 × Siemens 140 kW (190 hp) 3-phase AC induction motor w/ enclosed-ventilated lateral drive
Power output2.24 MW (3,000 hp)
Transmission5.94 : 1 (107 / 18) gear ratio
Acceleration1 m/s2 (3.3 ft/s2)
Auxiliaries110 V DC
Electric system(s)750 V DC third rail
Current collector(s)Collector shoe
UIC classification2′2′+Bo′Bo′+Bo′Bo′+Bo′Bo′+Bo′Bo′+2′2′
BogiesDuewag SF 2100[4]
Braking system(s)
  • 1st service brake: Self-excited, mixed service and resistor brake
  • 2nd service brake: Pneumatic compressed air wheel tyre block brake
  • Parking brake: Compressed air pressure spring-loaded brake
Safety system(s)
Coupling systemScharfenberg coupler
Track gauge1,435 mm (4 ft 8+12 in) standard gauge

The Siemens C651 was the second generation electric multiple unit rolling stock that operated on the North–South and East–West lines of Singapore's Mass Rapid Transit (MRT) system, manufactured by Siemens Mobility (SIE) and SGP Verkehrstechnik in Vienna, Austria under Contract 651. A total of 114 cars consisting of 19 trainsets were purchased in 1992 and were in service from 1995 to 2024.

  1. ^ a b "New MRT Train Rolls Out in Vienna". Trackview. Singapore: MRTC. 1994. On 19 July 1994...the first MRT train rolled out of the SGP plant in Vienna
  2. ^ "SMRT Upgrades Older Trains on the North-South and East-West Lines – SMRT Blog". blog.smrt.com.sg. Archived from the original on 19 July 2018. Retrieved 29 July 2018.
  3. ^ "SMRT决定停止第二代地铁列车中期翻新工程" [SMRT terminates mid-life refurbishment of 2nd-generation MRT trains]. 早报 (in Chinese). 16 September 2018. Archived from the original on 20 April 2019. Retrieved 24 October 2019.
  4. ^ a b c d "First Class Bogies" (PDF). Siemens. Archived from the original (PDF) on 22 July 2019.
  5. ^ Woodland, Daniel (August 2004). "Optimisation of Automatic Train Protection Systemstion Systems" (PDF). p. Appendix C Page 32 to Page 33. Archived (PDF) from the original on 15 June 2020. Retrieved 15 June 2020.
  6. ^ "THALES Urban Rail Signalling Singapore – North-South / East-West Lines" (PDF). Archived (PDF) from the original on 15 June 2020. Retrieved 16 June 2020.
  7. ^ Fang, Joy (2 February 2012). "Coming: $600m upgrade for MRT system/New train measures a 'catch-up'". My Paper. pp. A2, A6. Archived from the original on 18 May 2015. Retrieved 13 May 2015.


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